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1 vote
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Can you change the base point in an iterated wedge sum?

One should think of the wedge sum as the coproduct in the category $\mathrm{Top}_*$ of topological spaces equipped with a basepoint and basepoint-preserving continuous functions between them; given a ...
Ben Steffan's user avatar
  • 4,129
1 vote
Accepted

How deep does a sphere sit in a hole?

$$\alpha = r-\sqrt{r^2-x^2}$$ I found $\alpha$ via the quadratic formula, it should be minus not plus because $\alpha$ cannot exceed r
uggupuggu's user avatar
  • 449

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